Stair-carpet fastener



i (No Model.)

G. F. MURDOGK.

STAIR CARPET PASTENER.

No. 802,848. A1281-8188881 Apr. 12, 1888.

T omas PEIRS ce, PHOTO-Mmc.. WASHINGTON n c Arnd tric.

GEORGE F. MURDOOK, OF VELLSVILLE, OHIO.

STAlR-CARPET FASTENER.

SPECIFICATION forming part of Letters Patent No. 602,348, dated April12, 1898.

Application led April 26, 18,97. Serial No. 633,961. (No model.)

T0 @ZZ whom t may concern..-

Be it known that I, GEORGE F. MURDOCK, a citizen of the United States,residing at Vellsville, in the county of Columbiana and State of Ohio,have invented certain new and useful Improvements in Fastening Devicesfor Carpets; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to fastening devices for carpets, the object of thesame being to provide a simple and cheaply-constructed device forholding stair-carpets in place which may be readily applied and whichwill also serve as a stretcher for the carpet in the act of securing thesame in place.

My improved fastener is made up of a bar of metal, wood, or othersuitable material having a keyhole-slot therein, with adownwardly-projecting prong upon theiuner end thereof and adiagonally-arranged bearingsurface for the securing-screw at the end ofthecontracted portion of the keyhole-slot.

The invention also consists in other details of construction andcombinations of parts, which will bev hereinafter more fully describedand claimed.

In the drawingsforming a part of this specification, Figure l representsa perspective view of my device applied. Fig. 2 is a 1ongitudinalsection on the line w of Fig. l. Fig. 3 is a similar view of the samedetached. Fig. 4 is a top plan view 0f the same. Fig. 5 is a perspectiveView of a modified form of the invention, showing the covering-plate forthe securing-screw.

Like reference-numerals indicate like parts in the different views.

My improved fastener is made up of a bar l, of metal, wood, or othersuitable material, having angularly-arranged inner surfaces to conformto the shape of the corners of the steps to which the device is to beapplied, and provid ed with a keyhole-slot 2 therein whose narrowcontracted portion is adjacent to the outer end of the bar l. Upon theinner end of said bar is a downwardly-extending prong or tooth 3, whichis adapted to engage the outer surface of the carpet for a purpose whichwill hereinafter appear.

The top sur- 'first applied the same will be inserted diagonally, asclearly shown. The bar l is then placed upon the top surface of thecarpet, the enlarged portion of the keyhole-slot 2 permitting thepassage of the head of the screw 5 therethrough. Said bar is then forcedinwardly and the screw 5 seated. In the act of doing this the prong ortooth 3 is forced down into close engagement with the upper surface ofthe carpet, and said bar is then forced outwardly byreason of theengagement of the head of the screw 5 with the diagonally-arrangedbearing-surface 4. This stretches the carpet outwardly, and as thecontracted portion of the slot 2 is narrower than the head of the screw5 it is impossible for the fastening device to become detached.

In Fig. 5 of the drawings I have shown a modification of my invention inwhich is employed upon the upper surface of the bar l a sliding plate 8,designed for the purpose of covering the head of the screw 5 when thedevice is in position.

The invention is extremely simple in construction, can be cheaply made,is readily and conveniently applied, and when in place will hold thecarpet firmly and securely.

Having thus described the invention, what is claimed as new isl. Afasteningdevice for carpets, consisting of a bar having an engagingprong upon the under side thereof, and a slot therein, said bar beingprovided with a diagonallyarranged face at a point adjacent to the outerend of said slot, against'which the head of the securing-screw isadapted to bear when the latter is being seated, as and for the purposeset forth.

2. A fastening device for carpets, consisting of a bar having a prongupon the under IOO side thereof and a keyhole-slot therein, said barbeing provided with a diagonally-arranged face at a point adjacent tothe contracted end of said slot, against which the head of thesecuring-screw is adapted to bear when the latter is being seated, asand for the purpose set forth.

3. A fastening device for carpets, consisting of a bar having anengaging prong upon the under side thereof, and a slot therein throughwhich a securing-screw is adapted to be passed, said bar being providedwith a diagonally-arranged face at a point adjacent to the outer end ofsaid slot, which lies at right angles to the shank of said screw, andagain st which the head of said scre w is adapted to bear, and a platesiidingiy mounted in said har and adapted to cover the head of saidscrew, as and for the purpose set forth.

4. In a device of the character set forth, the combination with awear-plate secured to the step at the angle between the horizontai andvertical portions thereof, of a bar having a keyhole-slot therein,aprong at the inner end thereof adapted to engage the top surface of thecarpet, and a diagonally-arranged face adjacent to the contractedportion of said slot, and a screw passing through said Wear-plate,diagonai1y,whose head is adapted to bear against the diagonally-arrangedface of said bar, as and for the purpose set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

GEORGE F. MUR'DOCK.

Vitnesses:

JNO. W. RILEY, HENRY THORN.

